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Jan

Open Source Free Trial

Open-source desktop app for running LLMs locally with a clean GUI

Jan is an open-source desktop application for running large language models locally on macOS, Windows, and Linux. It provides a ChatGPT-style interface backed by local inference (via llama.cpp) with no internet connection required after model download. Supports Llama, Mistral, Phi, and Gemma families, and can connect to remote APIs (OpenAI, Anthropic, Groq) as an alternative front-end. Built by Menlo Research under Apache-2.0.

Pricing: Free

Hosting Self-hosted

License APACHE

GitHub 42,665 stars

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Screenshot of Jan webpage

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